remington



Grain Winnqwer.

No. 5,607. Patented May 30, 1848.

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UNITE STATES PATENT OFFICE.

GEO. R. REMINGTON, OF LOWER SANDUSKY, OHIO.

, WINNOWING-MACHINE.

Specification of Letters Patent No. 5,607, dated May 30. 1848.

To all whom it may concern:

Be it known that I, GEo. R. REMINGTON, of Lower Sandusky, Sanduskycounty, and State of Ohio, have invented a new and useful Improvement inVVheat-Fans; and I do hereby declare that the following is a full,clear, and exact description of its nature and construction, referencebeing had to the accompanying drawing, making part of thisspecification, in which Figure 1 is a longitudinal section of a fancymill with my improvements applied, the damper being open, and Fig. 2, anisometrical view of said improvement taken separate.

The same letters indicate like parts in both figures.

The nature of my invention consists in so regulating the current of aircreated by the fan, by means of what I denominate a swell or air dividerthat by its aid the position of the grains is so changed with referenceto its distance from the tail of the mill as to be perfectly cleaned inonce passing throughthe mill. \Vithout it, grain to be well cleaned mustbe twice passed through the millthe first time it falls immediately fromthe bottom of the hopper into and passes the mill at such distance fromthe tail of the mill as that grain mixed with heavy bodies of chaffcannot be blown away. After being chaffed in this way, the chess boardwhich is placed immediately under the bottom of the hopper in grooves isslid back toward the tail of the mill to pass the grain further back, inits second passage and so near the tail of the mill that light bodieswould be blown away in passing the grain through the mill the secondtime. This is the mode of cleaning without the swell, but by means ofit, the grain in passing from the hopper through the coarse screens andupper current of air down to the swell, is chaffed at a safe distancefrom the tail of the mill; after which by the inclination of the swellthe grain is slid so near the tail of the mill as to be perfectlycleaned in passing the lower current of air and the long fine screens.The swell performs two important offices: First. To divide the air intotwo currents, and to direct their course. Second.

To change the position of the grain in passing the mill, and saves thelabor of passing the grain once through the mill.

The construct-ion is as follows: In the accompanying drawings (A)represents the swell or air divider, which is stationary and made hollowto render it light, and is placed in the position represented in Fig. 1,the upper part (b) or that part toward the wings made convex to almosthalf the length of the swell and it then inclines down in a straightline toward the front end of the mill as is shown at (C) within theshoe. This end is then connected to the end of the convex part nearestthe wings or fan by an other straight board (cl) inclining down towardthe rear end of the mill and parallel with the lower screen of the shoe.The course screens of the shoe are situated above that portion of theair divider which enters the shoe, and the fine screen or screens belowit.

To regulate the current of air above and below this swell or air divider(A) I arrange a damper (B) shown in its proper place and open in Fig. 1.This damper is made concave, the rear end of which turns on a pivot (f)and the front end (when the damper is closed) just touches theairdivider as represented by the dotted lines (m 00.00) Figs. 1 and 2.To operate this damper (B) a rod projects down from it toward the bottomof the mill and connects with a lever (h) whose fulcrum is at Fig. 2,and by the raising of this lever the damper opens and vice versa.

The grain in passing through the upper and lower screens is-exposed tothe upper current of air (which is made to pass over the swell or airdivider) and it then falls upon the inclined part of the swell at (O)and in its passage to the lower and finer screens is exposed also to thelower current of air.

It will of course be understood that the damper (B) by means of thelever (in) can be partially or entirely open or closed to regulate thelower current of air according as the weight of the grain or seed beingcleaned may require.

Having thus fully described the nature of my invention, what I claim asnew therein, and desire to secure by Letters Patent, is-- The withindescribed construction and arrangement of the swell or air-divider witha grain cleaner for the purpose herein specified and made known.

GEORGE R. REMINGTON.

Witnesses:

R. H. CALDWELL, JOHN BELL.

